98690728 has 8 divisors (see below), whose sum is σ = 185045130. Its totient is φ = 49345360.

The previous prime is 98690689. The next prime is 98690749. The reversal of 98690728 is 82709689.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 90973444 + 7717284 = 9538^2 + 2778^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6168163 + ... + 6168178.

Almost surely, 2^98690728 is an apocalyptic number.

It is an amenable number.

98690728 is a deficient number, since it is larger than the sum of its proper divisors (86354402).

98690728 is a wasteful number, since it uses less digits than its factorization.

98690728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12336347 (or 12336343 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 98690728 is about 9934.3207115535. The cubic root of 98690728 is about 462.1242770806.

The spelling of 98690728 in words is "ninety-eight million, six hundred ninety thousand, seven hundred twenty-eight".